| 71. |
Seasoning of timber is done for
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Answer:
Option (b) |
| 72. |
The steel used for the manufacture of rails, is
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Answer:
Option (a) |
| 73. |
Granite is not suitable for ordinary building purpose because
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Answer:
Option (c) |
| 74. |
In the cement the compound quickest to react with water, is
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Answer:
Option (a) |
| 75. |
Which of the following gradients exerts maximum influence on properties of steel?
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Answer:
Option (b) |
| 76. |
Stainless steel contains
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Answer:
Option (a) |
| 77. |
Excess of silica in brick earth results in
|
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|
Answer:
Option (b) |
| 78. |
The slump recommended for mass concrete is about
|
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|
Answer:
Option (a) |
| 79. |
Wrought iron is used for
|
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|
Answer:
Option (b) |
| 80. |
Which of the following timbers is suitable for making sports goods?
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Answer:
Option (a) |